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/*
* Copyright (c) 2015 Mozilla Foundation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
package nu.validator.encoding;
import java.nio.charset.Charset;
import java.nio.charset.CharsetDecoder;
import java.nio.charset.CodingErrorAction;
public abstract class Decoder extends CharsetDecoder {
protected boolean report = true;
protected Decoder(Charset cs, float averageCharsPerByte, float maxCharsPerByte) {
super(cs, averageCharsPerByte, maxCharsPerByte);
}
@Override protected final void implOnMalformedInput(CodingErrorAction newAction) {
if (newAction == null) {
throw new IllegalArgumentException("The argument must not be null.");
}
if (newAction == CodingErrorAction.IGNORE) {
throw new IllegalArgumentException("The Encoding Standard does not allow errors to be ignored.");
}
if (newAction == CodingErrorAction.REPLACE) {
this.report = false;
return;
}
if (newAction == CodingErrorAction.REPORT) {
this.report = true;
return;
}
assert false: "Unreachable.";
throw new IllegalArgumentException("Unknown CodingErrorAction.");
}
@Override protected final void implOnUnmappableCharacter(
CodingErrorAction newAction) {
if (newAction == null) {
throw new IllegalArgumentException("The argument must not be null.");
}
if (newAction == CodingErrorAction.IGNORE) {
throw new IllegalArgumentException("The Encoding Standard does not allow errors to be ignored.");
}
if (newAction == CodingErrorAction.REPLACE) {
return; // We don't actually care, since there are no unmappables.
}
if (newAction == CodingErrorAction.REPORT) {
return; // We don't actually care, since there are no unmappables.
}
assert false: "Unreachable.";
throw new IllegalArgumentException("Unknown CodingErrorAction.");
}
@Override protected final void implReplaceWith(String newReplacement) {
if (!"\uFFFD".equals(newReplacement)) {
throw new IllegalArgumentException("Only U+FFFD is allowed as the replacement.");
}
}
// TODO: Check if the JDK decoders reset the reporting state on reset()
}
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